header{
    height: 0.85rem;
    background: #35c877;
}
.head,.mainList{
    width: 6.9rem;
    margin: 0 auto;
}
.head{
    height: 0.85rem;
    line-height: 0.85rem;
    font-size: 0.3rem;
}
.head>a{
    color: white;
    font-weight: 600;
}